[Sypha starts on ahead, glancing down at her arm to check she's going the right way and trusting that Zuko's following behind her. She looks back as she hears him speak up, a lilt of curiosity in his voice much like her own. Sorry, Zuko, you've chosen absolutely one of the worst people here to answer your question. Lucky she's a quick learner, but not that quick.]

I...don't know exactly how.

[She seems just a touch sheepish as she says it.]

Like I said, it's been a crazy past few days. There isn't anything like this where I come from, either, and it doesn't seem like it's using magic. You'll figure it out with some practice.

[That might seem like a joke to someone in a world that doesn't have it, or at least doesn't call it magic, but no, she's completely serious about it.]